I have a breeder near me that breeds LF blue eyed albino BN. It's not hoax.
Did you ask what the size of them was? The title of the auction looks like it says 2 blue eyed albino BN + 2 LF BN, not 2 LF blue eyed albino BN. Did you clear that up with the seller?
But congratualations on the win! They will be a prize in your aquarium.
I have recently bought LF albinos amd marbles. In both cases they were very young and the survival % was not good. If you get them and they are small, give them special accommodations and attention like you would fry. Out of 10 LF dwarf albino BN, 1 has made it to juvie status. Of 6 (2 M/4 F) LF marbles, 2 (a male and a female) have survived to young pre-adult (I can just see the whiskers on the male.) When I asked about the blue eyed BN, I was told they were more delicate than the LF dwarf albinos, He recommended the marbles as being hardier.
I admittedly have very little experience with them, but they have been much more delicate than I expected. And I picked them up locally; they were not shipped. I am learning. They seem to need more than zucchinni. They also like to have a regular supply of Hikari sinking wafers as well as the zucchinni and the Hikari algea wafers.